hg-core: fix path encoding usage...
hg-core: fix path encoding usage
1. Hash encoded path are in `.hg/store/dh` instead of `.hg/store/data`.
2. Path encoded index and data files may not have the same parent path.
It is not just about replacing `.i` by `.d`
Differential Revision:
https://phab.mercurial-scm.org/D9121
